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engin gearbos and diff what oils and grade

Posted: Wed Sep 02, 2015 11:00 pm
by scot the sniper
engine oil

gearbox oil (manual box)

diff oil

what grade please

trans am 1979 5.0

help plz

thx sniper

Re: engin gearbos and diff what oils and grade

Posted: Mon Sep 07, 2015 7:41 pm
by bhm1712
Engine oil: 20w50 oil. A good brand like royal purple. I now add in a bottle of cam break in fluid as well as it contains ZDDP which our old hydraulic flat tappet cams need

Gearbox fluid as far as I understands from looking in my manual is 80w90 gear oil (I have auto so a bit different)

For the diff it's the same as the gearbox but if it's a limited slip you will need an oil with lsd additive in it.

Re: engin gearbos and diff what oils and grade

Posted: Sat Sep 19, 2015 8:54 pm
by jonbullnose
yeah as ian said 20w50 i use valvoline and i use comp cams break in fluid all available from real steel in uxbridge, box and diff i think would of been ep90 but no longer made well not readily available any way and normally mopar lsd fuid is most readily avalible